CN103618493A - Single-winding single-phase AC motor control module - Google Patents
Single-winding single-phase AC motor control module Download PDFInfo
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- CN103618493A CN103618493A CN201310638970.XA CN201310638970A CN103618493A CN 103618493 A CN103618493 A CN 103618493A CN 201310638970 A CN201310638970 A CN 201310638970A CN 103618493 A CN103618493 A CN 103618493A
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Abstract
The invention relates to a single-winding single-phase AC motor control module which comprises a single-phase AC motor winding. An inlet end of the single-phase AC motor winding is connected with one end of an external AC power supply, an outlet end of the single-phase AC motor winding is connected with an AC input end of a rectifier bridge, the other AC input end of the rectifier bridge is connected with the other end of the external AC power supply, a DC output end of the rectifier bridge is connected with one end of a driver, the other DC output end of the rectifier bridge is connected with the other end of the driver, and a control end of the driver is used for receiving PWM signals sent by a processing unit. According to the single-winding single-phase AC motor control module, a conventional single-phase AC motor secondary winding, a starting capacitor and a centrifugal switch are eliminated, and the defects that the secondary winding has to be arranged in the running process, running of the capacitor causes power decrease, starting currents are too large instantly, silicon controlled pressure regulating speed change low harmonic waves pollute power grids, default-phase type frequency modulation and speed regulation cost is high and output power is low are overcome.
Description
Technical field
The present invention relates to load motor field, especially a kind of simplex winding load motor control module.
Background technology
Simplex winding load motor is owing to starting, and stack moment of torsion equates, initial velocity is zero, there is no External Force Acting, cannot rotate, but stir rotor towards forward or reverse direction, and the operation of can always switching on down.So existing monophase machine has two windings, start winding and operation winding.Two windings spatially differ 90 degree.At the starting capacitor that capacity is larger of having connected on winding, when operation winding and starting winding are during by single-phase alternating current, because capacitor effect makes to start electric current in winding in time than the leading an angle of 90 degrees of electric current of operation winding, first arrive maximum.On time and space, form two identical pulsed magnetic fields, make to have produced a rotating magnetic field in the air gap between stator and rotor, under the effect of rotating magnetic field, in rotor, produce induced current, the torque that generates an electromagnetic field that interacts of electric current and rotating magnetic field, rotates motor.Now, the monophase machine that centrifugal switch class is housed can be thrown electric capacity away, start winding operation, but this class motor can not the frequency control of phase shortage formula.
During the operation of existing monophase machine, have to be with auxiliary winding, capacitance operation to cause power to decline, starting current moment excessive, the low harmonic pollution electrical network of thyristor regulating pressure and speed, the disadvantage such as phase shortage formula frequency-adjustable speed-adjustable cost high-output power is low.
Summary of the invention
In view of this, the object of this invention is to provide a kind of simplex winding load motor control module.
The present invention adopts following scheme to realize: a kind of simplex winding load motor control module, comprise a load motor winding, it is characterized in that: described load motor winding inlet side connects external ac power source one end, described load motor winding goes out the ac input end that end connects a rectifier bridge, another ac input end of described rectifier bridge connects the external ac power source other end, one DC output end of described rectifier bridge connects one end of a driver, another DC output end of described rectifier bridge connects the other end of described driver, the pwm signal that the control end of described driver sends in order to receive a processing unit, described processing unit also carries out unidirectional zero passage detection by a zero passage detection unit to external ac power source.
In an embodiment of the present invention, described driver adopts insulated gate bipolar transistor or mos field effect transistor.
In an embodiment of the present invention, between described processing unit and described driver by the isolation that is coupled of one first optical coupler.
In an embodiment of the present invention, between described processing unit and described zero passage detection unit by the isolation that is coupled of one second optical coupler.
In an embodiment of the present invention, also comprise a speed adjustment unit, described speed adjustment unit carries out duty ratio pressure-adjusting type motor speed by the AD conversion unit of described processing unit and controls.
In an embodiment of the present invention, also comprise a rotating control unit, described rotating control unit, by controlling the duty ratio of the pwm signal of the positive negative sense half period output of described processing unit, is beneficial to control motor positive and inverse.
In an embodiment of the present invention, also comprise a keying control unit, described keying control unit is used for controlling described processing unit and whether exports described pwm signal, is beneficial to control motor and opens and closes.
In an embodiment of the present invention, also comprise a running status unit, described running status unit adopts LED lamp to show the open/close states of motor or to be connected to host computer with the open/close states of monitoring motor.
In an embodiment of the present invention, between described processing unit and described the second optical coupler, by a pull-up resistor, to realize IRQ trailing edge, trigger interruption.
In an embodiment of the present invention, described zero passage detection unit adopts unidirectional zero passage detection.
Simplex winding load motor control module of the present invention, save load motor auxiliary winding, start-up capacitance and centrifugal switch, while also avoiding moving, have to be with auxiliary winding, capacitance operation to cause power to decline, starting current moment excessive, the low harmonic pollution electrical network of thyristor regulating pressure and speed, the disadvantage such as phase shortage formula frequency-adjustable speed-adjustable cost high-output power is low.The present invention can also be as the transformation all load motors that can extract separately operation winding out except shaded-pole and series excitation formula load motor, make it have rotating and start the functions such as commutation, start-stop arbitrarily, on-line continuous speed governing, flexible custom starting moment of torsion, host computer Based Intelligent Control, make old load motor become energy saving and environment friendly motor.Support the load motor that only has simplex winding of energy-saving material.Also for control and the transformation of various single phase alternating current (A.C.) induction/resistance-type load.
For making object of the present invention, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the present invention be described in further detail.
Accompanying drawing explanation
Fig. 1 is the system principle diagram that hardware controls rotating of the present invention starts.
Fig. 2 is the system principle diagram that software control rotating of the present invention starts.
Fig. 3 is the fundamental diagram of the present invention in power supply positive half period.
Fig. 4 is the fundamental diagram of the present invention in the power-half period.
Fig. 5 is voltage transformation module of the present invention.
Embodiment
The invention provides a kind of simplex winding load motor control module, comprise a load motor winding, described load motor winding inlet side connects external ac power source one end, described load motor winding goes out the ac input end that end connects a rectifier bridge, another ac input end of described rectifier bridge connects the external ac power source other end, one DC output end of described rectifier bridge connects one end of a driver, another DC output end of described rectifier bridge connects the other end of described driver, the pwm signal that the control end of described driver sends in order to receive a processing unit, described processing unit also carries out unidirectional zero passage detection by a zero passage detection unit to external ac power source.
Preferably, described driver can adopt insulated gate bipolar transistor (IGBT) or mos field effect transistor (MOSFET), and the fixed cycle adopts 16kHz or 32kHz.
In order to reach voltage insulation blocking, between described processing unit and described driver by the isolation that is coupled of one first optical coupler, between described processing unit and described zero passage detection unit by the isolation that is coupled of one second optical coupler.
Adjustable in order to realize motor speed on-line continuous, also comprise a speed adjustment unit, described speed adjustment unit carries out duty ratio pressure-adjusting type motor speed by the AD conversion unit of described processing unit and controls.
In order to realize motor positive and inverse, control, also comprise a rotating (startup) control unit, described rotating starts control unit by controlling the duty ratio of the pwm signal of the positive negative sense half period output of described processing unit, is beneficial to control motor positive and inverse and starts.In order to realize motor, open and close control, also comprise a keying control unit, described keying control unit is used for controlling described processing unit and whether exports described pwm signal, is beneficial to control motor and opens and closes.
In order better to monitor the running status of motor, also comprise a running status unit, described running status unit adopts LED lamp to show the open/close states of motor or to be connected to host computer with the open/close states of monitoring motor.
Preferably, between described processing unit and described the second optical coupler, by a pull-up resistor, to realize IRQ trailing edge, trigger interruption.Described zero passage detection unit can adopt unidirectional zero passage detection.Preferably, also comprise a torque control unit, according to use occasion, be scheduled to or consult and use speed, soft readjustment detent torque.
As shown in Figure 1, the invention provides a kind of simplex winding load motor control module, comprise a load motor simplex winding M, described load motor simplex winding M one end connects external ac power source (the present embodiment is chosen 220V single-phase alternating current) one end, the described load motor simplex winding M other end connects an ac input end of a rectifier bridge, another ac input end of described rectifier bridge connects the external ac power source other end, one DC output end of described rectifier bridge connects an insulated gate bipolar transistor Q(driver) one end, another DC output end of described rectifier bridge connects the other end of described insulated gate bipolar transistor Q, the grid of described insulated gate bipolar transistor Q (control end) is connected to a processing unit MCU by one first optical coupler OC1, the pwm signal sending in order to receive described processing unit MCU, described processing unit MCU also connects 1 pair of external ac power source of a zero passage detection cells D by one second optical coupler OC2 and carries out zero passage detection.Between described processing unit and described the second optical coupler OC2, by a pull-up resistor R1, to realize IRQ trailing edge, trigger interruption; The AD conversion unit that described processing unit connects described processing unit by a variable resistor R2 is carried out duty ratio pressure-adjusting type motor speed and is controlled; Described processing unit also opens and closes control unit by commutator SW1() and SW2(rotating control unit) carry out keying control and the rotating control of motor; Described rotating starts control unit and keying control unit can utilize hardware circuit to realize, also can realize by software control, as shown in Figure 2, processing unit need add memory module EEROM by IIC() or SPI serial communication line be connected to upper computer software control chip and control.
Fuse F in diagram is in order to guarantee system safety operation, and filter capacitor C is in order to filtering high-frequency current.External ac power source of the present invention can adopt 115 VAC or 220 VAC, frequency 50Hz or 60Hz, and electric current 6A, moment allows 8A, and basic rotating speed depends on simplex winding number of pole-pairs.Processing unit can adopt the processor that PWM control module (forward edging trigger is provided) and digital-to-analogue conversion ADC module (the duty ratio numerical value that provides analog voltage to be converted in 40%～90% scope is adjustable continuously as duty ratio pressure-adjusting type rotating speed) are provided.
Below in conjunction with Fig. 1, Fig. 3 and Fig. 4, operation principle of the present invention is described.
As shown in Figure 3, when alternating voltage is upper just lower negative (being as the criterion with the position in illustrating), the electric current of external ac power source flows into insulated gate bipolar transistor Q by the D12 of rectifier bridge, D13 through rectifier bridge enters load motor winding M again, finally flow back to external ac power source, form current circuit; As shown in Figure 4, when alternating voltage is upper while just (being as the criterion with the position in illustrating) under negative, the electric current of external ac power source by load motor winding M after D14 by rectifier bridge enter insulated gate bipolar transistor Q, D11 through rectifier bridge flows back to external ac power source again, forms current circuit.
With reference to Fig. 3 and Fig. 4, zero passage detection unit is used unidirectional (forward or negative sense) to detect, adopt in the present embodiment forward to detect, between twice rising edge saltus step, be a complete power frequency period, obtain according to this 50Hz or 60Hz judgement, etc. separate positive and negative to half period and number and the starting point of making the driver fixed cycle.
And then by time delay, when judgement when starting (starting the state of control unit by judgement rotating) is forward, the duty ratio of pressure forward half cycle is greater than the duty ratio of negative sense half cycle, make forward half cycle moment of torsion be greater than negative sense half cycle moment of torsion, rotor asynchronous induction, rotor clockwise rotate half second to one second or some second after, enter positive and negatively to half cycle moment of torsion equivalent state, clockwise rotate operation.When in service, need change to turn to, stall is waited in first time delay, then enters the negative sense of forcing the duty ratio of negative sense half cycle to be greater than the duty ratio of forward half cycle and start operation, after rotor rotates counterclockwise, enter positive and negatively to half cycle moment of torsion equivalent state, rotate counterclockwise operation.
Variable resistor R2, carries out digital translation by timing acquiring change in voltage analog signal by ADC module as shown in Figure 1, regulates continuously duty ratio to realize the online slip speed governing in preset range.
The realization that starting torque is poor, can be the fixedly rigid adjusting of value difference of duty ratio, can be also online actual speed duty ratio increase and decrease amount flexible choice, and starting torque can be controlled arbitrarily in the scope of electric current license.
As shown in Figure 5, Fig. 5 is voltage transformation module of the present invention, in order to VCC voltage (15V) and the vdd voltage (5V) in this control module to be provided.This part can be supplied with by master control host computer power supply.
The present invention can also be as the transformation all monophase machines that can extract separately operation winding out except shaded-pole and series excitation formula monophase machine, make it have rotating and start the functions such as commutation, start-stop arbitrarily, on-line continuous speed governing, flexible custom starting moment of torsion, host computer Based Intelligent Control, make old load motor become energy saving and environment friendly motor.Support the load motor that only has simplex winding of energy-saving material.Also for control and the transformation of various single phase alternating current (A.C.) induction/resistance-type load.
Above-listed preferred embodiment; the object, technical solutions and advantages of the present invention are further described; institute is understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a simplex winding load motor control module, comprise a load motor winding, it is characterized in that: described load motor winding inlet side connects external ac power source one end, described load motor winding goes out the ac input end that end connects a rectifier bridge, another ac input end of described rectifier bridge connects the external ac power source other end, one DC output end of described rectifier bridge connects one end of a driver, another DC output end of described rectifier bridge connects the other end of described driver, the pwm signal that the control end of described driver sends in order to receive a processing unit, described processing unit also carries out unidirectional zero passage detection by a zero passage detection unit to external ac power source.
2. simplex winding load motor control module according to claim 1, is characterized in that: described driver adopts insulated gate bipolar transistor or mos field effect transistor.
3. simplex winding load motor control module according to claim 1, is characterized in that: between described processing unit and described driver by the isolation that is coupled of one first optical coupler.
4. simplex winding load motor control module according to claim 1, is characterized in that: between described processing unit and described zero passage detection unit by the isolation that is coupled of one second optical coupler.
5. simplex winding load motor control module according to claim 1, is characterized in that: also comprise a speed adjustment unit, described speed adjustment unit carries out duty ratio pressure-adjusting type motor speed by the AD conversion unit of described processing unit and controls.
6. simplex winding load motor control module according to claim 1, it is characterized in that: also comprise a rotating control unit, described rotating control unit, by controlling the duty ratio of the pwm signal of the positive negative sense half period output of described processing unit, is beneficial to control motor positive and inverse.
7. simplex winding load motor control module according to claim 1, is characterized in that: also comprise a keying control unit, described keying control unit is used for controlling described processing unit and whether exports described pwm signal, is beneficial to control motor and opens and closes.
8. simplex winding load motor control module according to claim 1, it is characterized in that: also comprise a running status unit, described running status unit adopts LED lamp to show the open/close states of motor or to be connected to host computer with the open/close states of monitoring motor.
9. simplex winding load motor control module according to claim 1, is characterized in that: between described processing unit and described the second optical coupler, by a pull-up resistor, to realize IRQ trailing edge, trigger interruption.
10. simplex winding load motor control module according to claim 1, is characterized in that: described zero passage detection unit adopts unidirectional zero passage detection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310638970.XA CN103618493A (en) | 2013-12-04 | 2013-12-04 | Single-winding single-phase AC motor control module |
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| CN201310638970.XA CN103618493A (en) | 2013-12-04 | 2013-12-04 | Single-winding single-phase AC motor control module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143588A1 (en) * | 2014-03-27 | 2015-10-01 | 南京西普尔科技实业有限公司 | Supercapacitor controller capable of adjusting power |
| CN107222042A (en) * | 2017-07-24 | 2017-09-29 | 曹曦 | Electromagnetic driver |
| CN107294431A (en) * | 2017-02-23 | 2017-10-24 | 叶露微 | A kind of self-starting single-phase permanent-magnet motor |
| CN109209964A (en) * | 2018-08-16 | 2019-01-15 | 付燕萍 | intelligent ventilation control system and control method |
| CN109322691A (en) * | 2018-10-22 | 2019-02-12 | 中铁第四勘察设计院集团有限公司 | The energy consuming brake of tunnel blower |
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| EP0366996A1 (en) * | 1988-10-28 | 1990-05-09 | Sew-Eurodrive Gmbh & Co. | Induction motor on single-phase network |
| CN2127531Y (en) * | 1992-05-21 | 1993-02-24 | 邓放明 | Time stepless governor |
| CN2627733Y (en) * | 2003-05-13 | 2004-07-21 | 沈强 | Electric machine voltage regulator |
| CN201178399Y (en) * | 2008-02-29 | 2009-01-07 | 佛山市中格威电子有限公司 | Stepless speed regulating fan having zero-cross detection circuit |
| CN203119824U (en) * | 2013-01-18 | 2013-08-07 | 陈志龙 | Direct current motor power-saving device |
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2013
- 2013-12-04 CN CN201310638970.XA patent/CN103618493A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0366996A1 (en) * | 1988-10-28 | 1990-05-09 | Sew-Eurodrive Gmbh & Co. | Induction motor on single-phase network |
| CN2127531Y (en) * | 1992-05-21 | 1993-02-24 | 邓放明 | Time stepless governor |
| CN2627733Y (en) * | 2003-05-13 | 2004-07-21 | 沈强 | Electric machine voltage regulator |
| CN201178399Y (en) * | 2008-02-29 | 2009-01-07 | 佛山市中格威电子有限公司 | Stepless speed regulating fan having zero-cross detection circuit |
| CN203119824U (en) * | 2013-01-18 | 2013-08-07 | 陈志龙 | Direct current motor power-saving device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143588A1 (en) * | 2014-03-27 | 2015-10-01 | 南京西普尔科技实业有限公司 | Supercapacitor controller capable of adjusting power |
| CN107294431A (en) * | 2017-02-23 | 2017-10-24 | 叶露微 | A kind of self-starting single-phase permanent-magnet motor |
| CN107222042A (en) * | 2017-07-24 | 2017-09-29 | 曹曦 | Electromagnetic driver |
| CN109209964A (en) * | 2018-08-16 | 2019-01-15 | 付燕萍 | intelligent ventilation control system and control method |
| CN109322691A (en) * | 2018-10-22 | 2019-02-12 | 中铁第四勘察设计院集团有限公司 | The energy consuming brake of tunnel blower |
| CN109322691B (en) * | 2018-10-22 | 2024-03-15 | 中铁第四勘察设计院集团有限公司 | Energy consumption braking device of tunnel fan |
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Effective date of abandoning: 20161228 |
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